Trolley-pole head.



No. 885,776. PATBNTBD APR. 2s', 190s.

G. VMorra: an A.A -G. K0ENIG.

TROLLEY 1701.3 HEAD. A PPLIOATION FILED APB.. 26, 1.907.

*UNITEDsTArns PATENT oFFIoE.

GARRET Morr, on New Yoann. Y., ANn/AnoLrn G. Konnte, or WEEHAWKEN, NEW JERSEY. p

f 'rnoLLnYfPoLn man.

25pecileation of Letters Patent.

`. Patented-April as, 190s.

.. Application mea Apn'i z5, 190i; serial No. 370,156.

To all whom'fit may concern; l

Be it known that we, GARRET Mori?. and

' `.ADOLPH G. 'Ko-ame, citizens of the United States, and residin respectively,- at New York, Y., and

eehawken, New Jersey,

have invented new and' useful Im'prove-- ments in Trolley-Pole Heads, of which4 the following is a speciiication;

Our invention relates to improvements in the end or head of 4the trolley pole in which is mounted the trolley wheel for taking thez current from an overhead wire, and consists in a laterally-yielding, spring-controlled mounting for the trolley wheel, as is hereinafter fully set forth.

In the drawings Figure 1 is a side'elevation otour improved device; Fig. 2 is atop on the line X X of1Fig. 1 loo rection of the arrows.

view of the same in the'position shown in Fig. 1, the lowerendnof the shank being broken ofi; and Fig. 3 is a sectional detail of one of the springs and spring-lguides taken 4 'ng in the di- The samev parts are referred to by the saine letters in all the figures. v

Ais the upper end, partly in section, of a tubular trolley pole.

B is a shank provided at its lower end with a reduced extension b adapted to be slipped into the end of the trolley pole A and to be secured therein 4,by rivets a, a, or byl other suitable fastenings. The .shank B is provided at its up er end with a malehingemember C which is held between the femalel hinge-'members D D of the Wheel 'forlr E by the pivot in F. The trolley fork E 1s provided wit shoulder stops qa-adapted to enga e with the similar stops bpbpon the sha B when the trolley fork is swung to either side upon its pivot pin F through the arc between the stops e and b. The trolley wheel is journaled backof.l and thereto lin of the ivot pin will pass in close proximity to the gorward edgeof the trolley'. wheel. And the side sto 's yare so placed that the wheel cannot swin ar enough to assume such atransverse relationl thereto that the edge flanges of the Wheelwill throw. the wire out of the wheels groove. -Thisinsures the retainin 'of the trolley head in such a position that w enever the trolley pole'is 5s swungunder a normally'strung Iwire the to either side ofa wire," whc has only normal lateral variations as oove will be in a position to d the wire, which it could not trolley wheel receive and ho 'do if it could swing' too far to one side or the other, as, for instance, to an angle of forty five degrees, orfstill further around.

G G are flat springs bolted to the shank B -by the bolt g, and having their ends passing freely through the loops or guides h, h, on the sides" of the trolley fork E.

'l is an insulated conductor for insuring the passage of the -current past the hinge. And this conductor is preferably detachably secured at one end, as at t', so that it can be readily released if'it is desired to separate the parts of the trolley head.` "J is a loop for securing-a rope pole. l This construction results in a trolley head wherein the trolley' fork hasta spring-controlled movement throu h a limited arc to either side, being held, owever, normally, in line with the trolley pole by the side springs G Gfbut being free to yield to either sldeto accommodate itself to irregularities in the wire or lateral movements of the car, without being driven oli the wire' or brought l into such a transverse position on thewire that it will unduly grind or bind thereupon. The springs Gr G bein placed on either side of the trolley fork an eing slidably heldwithin the guides h, h, bothract to control the trolley fork when it is swung to either side. This ermits the use 'of li hter and more flexib e springs than would e permissible if either spring only acted in one direction, or than if a single spring were depended upon, and increases the flexibility of the trolley to the'trolley head and its capacity for adapting itself to the lateral angle or variations of the'wire.,

Having thus described our invention what pin connecting said hinged-members upon a 110 we claim andf-desireto, secure by Letters 9;.5.'

ies

.. and having its free end slidably he Q Y esame line passing in close proximity to une forward an external guide-loop on the side of the edge of thetrolley Wheel, the trolley fork eX- trolley fork.

tending parallel to and slightly back of the GARRET MOTT. `line of the shank, and a Het spring rigidly se- ADOLPH G. KOENIG. 5 cured on either side of said trolley shank eX- Witnesses:

tending horizontally past said hinfged joint WM. D. NEILLEY,

d within l l WILLIAM H. MOHR. 

